Question about 1991 Cadillac DeVille
My 1991 cadillac devile(4.9) runs great when cold,but after it warms up it starts to run rough. No engine lights come on dash indicating a problem. I have also changed the air and fuel filter. the car has 102k. miles.
I'd take a look at the temp sender...the engines computer may be
"thinking" the engine is still cold when it's not. That would cause it
run rich (and rough) after it's warmed up. Generally the sender can be
tested with an ordinary volt/ohmeter but you will need the
specifications available in most inexpensive manuals. As with any
complicated electronics system, I can only give you my best guess,
without the luxury of doing any hands-on testing myself.
Posted on May 28, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 03, 2016 | 2004 Cadillac Deville
Nov 05, 2015 | Ford Cars & Trucks
Jun 20, 2014 | 1990 Toyota 4Runner
Mar 09, 2013 | 1996 Ford Thunderbird LX
Dec 16, 2011 | Dodge Ram 1500 Cars & Trucks
May 11, 2009 | 1991 Chevrolet C1500
Jul 05, 2008 | 1991 Plymouth Colt
Jun 29, 2008 | 1991 Plymouth Colt
Jun 28, 2008 | 1991 Plymouth Colt
2,104 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: